import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent


    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['content-type'] = 'application/json'
      config.headers['Authorization'] = 'Bearer ' + getToken()
    }

    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.status !== 200) {
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })
      var message = ''
      switch (res.status) {
        case 403:{
          message = '无访问权限'
          break;
        }
        case 401:{
          // message = 'Token Not Found'
          this.$router.push('/401')
          break
        }
        case 495:{
          message = 'Token Not Found'
          break
        }
        case 496:{
          message = 'UserName Not Found'
          break
        }
        case 497:{
          message = 'Illegal Token'
          break
        }
        case 498:{
          message = 'Account Expired'
          break
        }
        case 499:{
          message = 'Token Expired'
          break
        }
      }
      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      console.log(res)
      if ((res.status === 401 && res.message !=='Login Failure')|| res.status === 495 || res.status === 497 || res.status === 498 ||res.status === 499 || res.status === 403) {
        MessageBox.confirm(message + ' 您已被登出, 您可以选择取消并停留在此页面也可以重新登录', '登出确认', {
          confirmButtonText: '重新登录',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      }
      // return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error)

    if (res.status === 403 ){
      MessageBox.confirm(message + '您已被登出, 您可以选择取消并停留在此页面也可以重新登录', '登出确认', {
        confirmButtonText: '重新登录',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        store.dispatch('user/resetToken').then(() => {
          location.reload()
        })
      })
      return Promise.reject(error)
    }
    // for debug
    // var errStr = String(error)
    // if (errStr.indexof('Network') == 'Error: Network Error') {
    //   MessageBox.confirm(errStr + ', you can cancel to stay on this page, or log in again', 'Confirm logout', {
    //     confirmButtonText: 'Re-Login',
    //     cancelButtonText: 'Cancel',
    //     type: 'warning'
    //   }).then(() => {
    //     store.dispatch('user/resetToken').then(() => {
    //       location.reload()
    //     })
    //   })
    //   return Promise.reject(error)
    // }
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
